Knock knock. Who's there? Fig.

Fig who? Fig-ure it out yourself!

Knock knock. Who's there? Sew

Sew who? Sew long, I've been trying to weave a good joke together.

Knock knock. Who's there? Brew.

Brew who? Tea-rific to meet you.

Knock knock. Who's there? Bye.

Bye who? Bye-gone conclusion, I'm leaving!